<template>
  <a-layout :class="['admin-layout', 'beauty-scroll']">
    <drawer v-if="isMobile" v-model="drawerOpen">
      <side-menu :theme="theme.mode" :menuData="menuData" :collapsed="false" :collapsible="false"
        @menuSelect="onMenuSelect" />
    </drawer>
    <side-menu :class="[fixedSideBar ? 'fixed-side' : '']" :theme="theme.mode"
      v-else-if="layout === 'side' || layout === 'mix'" :menuData="sideMenuData" :collapsed="collapsed"
      :collapsible="true" />
    <div v-if="fixedSideBar && !isMobile"
      :style="`width: ${sideMenuWidth}; min-width: ${sideMenuWidth};max-width: ${sideMenuWidth};`" class="virtual-side">
    </div>
    <drawer v-if="false" v-model="showSetting" placement="right">
      <div class="setting" slot="handler">
        <a-icon :type="showSetting ? 'close' : 'setting'" />
      </div>
      <setting />
    </drawer>
    <a-layout class="admin-layout-main beauty-scroll">
      <admin-header :class="[{'fixed-tabs': fixedTabs, 'fixed-header': fixedHeader, 'multi-page': multiPage}]"
        :style="headerStyle" :menuData="headMenuData" :collapsed="collapsed" @toggleCollapse="toggleCollapse" />
      <a-layout-header
        :class="['virtual-header', {'fixed-tabs' : fixedTabs, 'fixed-header': fixedHeader, 'multi-page': multiPage}]"
        v-show="fixedHeader"></a-layout-header>
      <a-layout-content class="admin-layout-content" :style="`min-height: ${minHeight}px;`">
        <div style="position: relative; padding-bottom: 12px;">
          <slot></slot>
        </div>
      </a-layout-content>
      <!--<a-layout-footer style="padding: 0px">-->
        <!--<page-footer :link-list="footerLinks" :copyright="copyright" />-->
      <!--</a-layout-footer>-->
    </a-layout>
  </a-layout>
</template>

<script>
  import AdminHeader from './header/AdminHeader'
  // import PageFooter from './footer/PageFooter'
  import Drawer from '../components/tool/Drawer'
  import SideMenu from '../components/menu/SideMenu'
  import Setting from '../components/setting/Setting'
  import { mapState, mapMutations, mapGetters } from 'vuex'

  // const minHeight = window.innerHeight - 64 - 122

  export default {
    name: 'AdminLayout',
    components: {
      Setting,
      SideMenu,
      Drawer,
      // PageFooter,
      AdminHeader
    },
    data() {
      return {
        minHeight: window.innerHeight - 64 - 12,
        collapsed: false,
        showSetting: false,
        drawerOpen: false
      }
    },
    provide() {
      return {
        adminLayout: this
      }
    },
    watch: {
      $route(val) {
        this.setActivated(val)
      },
      layout() {
        this.setActivated(this.$route)
      },
      isMobile(val) {
        if (!val) {
          this.drawerOpen = false
        }
      }
    },
    computed: {
      ...mapState('setting', ['isMobile', 'theme', 'layout', 'footerLinks', 'copyright', 'fixedHeader', 'fixedSideBar',
        'fixedTabs', 'hideSetting', 'multiPage']),
      ...mapGetters('setting', ['firstMenu', 'subMenu', 'menuData']),
      sideMenuWidth() {
        return this.collapsed ? '80px' : '256px'
      },
      headerStyle() {
        let width = (this.fixedHeader && this.layout !== 'head' && !this.isMobile) ? `calc(100% - ${this.sideMenuWidth})` : '100%'
        let position = this.fixedHeader ? 'fixed' : 'static'
        return `width: ${width}; position: ${position};`
      },
      headMenuData() {
        const { layout, menuData, firstMenu } = this
        return layout === 'mix' ? firstMenu : menuData
      },
      sideMenuData() {
        const { layout, menuData, subMenu } = this
        return layout === 'mix' ? subMenu : menuData
      }
    },
    methods: {
      ...mapMutations('setting', ['correctPageMinHeight', 'setActivatedFirst']),
      toggleCollapse() {
        this.collapsed = !this.collapsed
      },
      onMenuSelect() {
        this.toggleCollapse()
      },
      setActivated(route) {
        if (this.layout === 'mix') {
          let matched = route.matched
          matched = matched.slice(0, matched.length - 1)
          const { firstMenu } = this
          for (let menu of firstMenu) {
            if (matched.findIndex(item => item.path === menu.fullPath) !== -1) {
              this.setActivatedFirst(menu.fullPath)
              break
            }
          }
        }
      }
    },
    created() {
      this.correctPageMinHeight(this.minHeight - 24)
      this.setActivated(this.$route)
    },
    beforeDestroy() {
      this.correctPageMinHeight(-this.minHeight + 24)
    }
  }
</script>

<style lang="less" scoped>
  .admin-layout {
    .side-menu {
      &.fixed-side {
        position: fixed;
        height: 100vh;
        left: 0;
        top: 0;
      }
    }

    .virtual-side {
      transition: all 0.2s;
    }

    .virtual-header {
      transition: all 0.2s;
      opacity: 0;

      &.fixed-tabs.multi-page:not(.fixed-header) {
        height: 0;
      }
    }

    .admin-layout-main {
      .admin-header {
        top: 0;
        right: 0;
        overflow: hidden;
        transition: all 0.2s;

        &.fixed-tabs.multi-page:not(.fixed-header) {
          height: 0;
        }
      }
    }

    .admin-layout-content {
      padding: 24px 24px 0;
      /*overflow-x: hidden;*/
      /*min-height: calc(100vh - 64px - 122px);*/
    }

    .setting {
      background-color: @primary-color;
      color: @base-bg-color;
      border-radius: 5px 0 0 5px;
      line-height: 40px;
      font-size: 22px;
      width: 40px;
      height: 40px;
      box-shadow: -2px 0 8px @shadow-color;
    }
  }
</style>